Lab # 1 Phyla Porifera And Cnidaris

Front 1

Phylum:

Porifera (Sponges)

Back 1

-simplest of the animal phyla
-asymmetrical
-no organ dev. or complex tissues
-Adults are sessile- attached to a surface;
-larvae are free-swimming
-feed by circulating water through pores and canals; trapping particles
-skeleton composed of spicules, spongin or both

Front 2

1. Grantia

Back 2

Phylum Porifera: (3)
1. sample
ID: osculum & Spicules
2. c.s.
ID: incurrent canal & spongocoel
3. prepare we mount

Front 3

2. Spongia

Back 3

Phylum Porifera: (1)

Front 4

Phylum Porifera: Terms

Heterotrophs

Back 4

-organisms that derive their energy from organic molecules made by other organisms

Front 5

Phylum Porifera: Terms

Epithelial Cells

Back 5

-flat cells that line the outer walls of sponges

Front 6

Phylum Porifera: Terms

Spongocoel

Back 6

-central cavity inside the sponge

Front 7

Phylum Porifera: Terms

Choanocytes

Back 7

-cells lining the spongocoel with flagella that draw water containing food particles into the spongocoel through pores in the body wall

Front 8

Phylum Porifera: Terms

Osculum

Back 8

-a large hole in the end of the sponge through which filtered water exits

Front 9

Phylum Porifera: Terms

Spicules

Back 9

-crystalline skeletal structures in walls of some sponges composed of either calcium carbonate or silica

Front 10

Phylum Porifera: Terms

Spongin

Back 10

-skeletal structures in the walls of some sponges which are not crystalline, but flexible fibers composed of protein